gearbox

noun/ˈɡɪrˌbɑks/

Frequency rank: #10,613 most common English word

Meaning

A casing containing a set of gears that transmits power from an engine to the wheels or other moving parts.

Illustration for the English word “gearbox”

Example sentence

The mechanic spent two hours replacing the faulty gearbox in the old truck.

Synonyms & related words

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